About Us

DQS Inc.

In order to support customers’ growing global needs, Underwriter’s Laboratories Inc. (UL), an independent certification and testing company working for a safer world since 1894, merged its Management Systems Solutions business with DQS in 2008. DQS GmbH was founded on February 1, 1985 by the German Society for Quality (DGQ) and (German Institute for Standardization (DIN)) to be the first German registrar for the certification of management systems. The two companies merged in 2008 to form one of the top certification bodies in the world.

Partner with DQS Inc.

Once an organization has made the decision to implement a management system and have it certified by an impartial third-party, the next step is to select a certification body. Any quick Google search will demonstrate that there are several certification bodies to choose from. However, companies must be diligent in their search for a business partner that will be able to add value beyond the certificate of conformance.

DQS Inc. was formed as a strategic partnership between Underwriters Laboratories (UL) and DQS (Germany’s first certification body). As a result of this merger, DQS Inc. is able to provide global resources and highly skilled, local auditors. Currently, we have more than 2,500 leading industry experts with the knowledge and expertise to help you achieve your business objectives.

Why DQS Inc.?

The answer is simple. You are looking for a valuable business partner who can provide training, assessments and certifications and DQS Inc. is looking for partners that want to achieve more from their management systems.  Find out why DQS Inc. is one of the most trusted certification bodies in the world. Learn more about our global company here.

Expanded Services

Every day we work with clients seeking to independently assess and certify their management systems to one of the many ISO standards and/or evaluate their practices against their own internal expectations. We are among the leading global companies providing management systems certifications, offering a full suite of services in all major geographies around the world. We value your business and remain committed to our customer focus and technical excellence. We look forward to the opportunity to partner with you globally in achieving your business objectives.


DQS Inc. has its headquarters in Buffalo Grove, IL. DQS Inc. personnel are located in over 30 states to provide assessment services to our customers across North America. Satellite offices are located in New York and North Carolina.